SERENITY

n. 1 peacefulness, peace, tranquillity, calm, calmness, restfulness, quiet, stillness The serenity of the warm summer's evening was shattered by an enormous explosion 2 tranquillity, peacefulness, peaceableness, unexcitability, calmness, calm, composure, self-possession, poise, aplomb, even-temperedness, temperance, nonchalance, cool-headedness, placidity, Colloq unflappability The serenity of her nature was like a safe harbour to the friends who sought comfort from the turbulence of their lives